﻿/*
Copyright (c) 2008 Martin Legris

Permission is hereby granted, free of charge, to any person obtaining a copy of this 
software and associated documentation files (the "Software"), to deal in the Software 
without restriction, including without limitation the rights to use, copy, modify, 
merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 
permit persons to whom the Software is furnished to do so, subject to the following 
conditions:

The above copyright notice and this permission notice shall be included in all copies 
or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

@ignore
*/
package newcommerce.lastfm.api.feeds 
{
	import newcommerce.lastfm.api.data.LFMArtistData;
	
	/**
	 * ...
	 * @author Martin Legris ( http://blog.martinlegris.com )
	 */
	public class LFMArtistFeed 
	{
		protected var _xml:XML;
		protected var _pointer:Number = 0;
		protected var _nodeName:String = "artist";
		
		
		public function LFMArtistFeed(xml:XML) 
		{
			_xml = xml;
		}
		
		public function get artist():String
		{
			var artist:String;
			try
			{
				artist = _xml.@artist[0].toString();
			}
			catch(e:TypeError)
			{
				artist = "";
			}
			
			return artist;
		}
		
		public function get count():Number
		{
			return _xml.child(_nodeName).length();
		}
		
		public function getAt(idx:Number):LFMArtistData
		{
			if(idx >= 0 && idx < count)
				return LFMArtistData.fromXML(_xml.child(_nodeName)[idx]);
			else
				return null;
		}
		
		public function first():LFMArtistData
		{
			return getAt(_pointer = 0);
		}
		
		public function next():LFMArtistData
		{
			if (_pointer < count)
				return getAt(_pointer++);
			else
			{
				_pointer = 0;
				return null;
			}
		}
	}
}